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Priority to JP1990113432UpriorityCriticalpatent/JPH0471552U/ja
Priority to PCT/JP1991/001475prioritypatent/WO1992007491A1/ja
Priority to KR1019920701392Aprioritypatent/KR950014761B1/ko
Priority to US07/859,506prioritypatent/US5340196A/en
Priority to EP19910918600prioritypatent/EP0513365A4/en
Publication of JPH0471552UpublicationCriticalpatent/JPH0471552U/ja